Albert justin gates



4. JpGATEs'. GYRATING CRUSHBR.

` No. 525,413. Patented Sem-4,1894

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- UNITED v STATES PATENT OFFICE. l

ALBERT JUSTIN GATES, OF CHICAGO, ILLINOIS, ASSIGN OR TO THE GATES IRON WORKS, SAME PLACE. y

GYRATING CRUSH ER. Y

SPECIFICATION forming part of Letters Patent o.' 525,413, dated September 4, 1894.

I Application filed November 3, 1893. SerlalNoflBQlM. (No model.)

To @ZZ rwiz/0m it may oon/cern:

wardly inclinin g iiange, b, inwardly incliningA on its outer surface, so that when the spider is in place the inwardly inclining surface of the anges, h, will dovetail or wedge withthe inwardly inclining surface of the ange, a. The spider is also provided with an outwardly inclining flange, b', which, when the parts are together, is held above the top surface of the flange, a, so lthat there is a spaceot2 between them and a space, bbetween the bottom of the iiange, b, and the shoulder, a', of the shell. This permits the spider, as wear takes place, to settle farther down and thus constantly preserves 'a close, tight and secure joint. To hold the parts together, bolts,'O, are passed through holes in the flanges, a and b', and their nutsscrewed tightlyl in place.- These nuts can be tightened from time to time as wear occurs to hold the spider securely down in close and tight contact with the shell.` The shell, A, is provided with a lining or crushing surface, D, which may be made in any convenient or ordinary manner. A cone or crushing surface, D', is mounted on a shaft, D2, which is intended to have a gyrating motion imparted to it, so as to bring its crushing surface toward the crushing surface, D, as is usual in the operation of such machines. At one side of the shell, A, a hole,

E, is left for the escape of the crushed material, and at the other side is arranged a block, F, containing a horizontal journal or bearing throughwhich a shaft, f, passes. This shaft carries a pulley, F', by which it is dependent axes of rotation.

intended to be rotated through the applicarange on' the shaft, f, inside of the block, F, a pinion,f', whose teeth are intended to engage or mesh with the teeth of the pinion, G, arranged onl the shaft, g. through a vertical journal-bearing in one of the webs or wings of alhub, H, supported or suspended in the lower portion of the shell A. The lower end of the shaft, g, is seated in a step or block, g', and it carries a pinion, h,v having a lateral flange, h', at its top, so as to form what is known as a shroudedpinion, and which is feathered on the shaft so as to bevcapable of being raised and lowered with the gear with which itis engaged. The teeth of this pinion engage or mesh with the teeth of a gear, I, arranged on the lower end of an eccentricv box, I', which is journaled in the hub, H, and in which thelower end of the shaft, D2, is stepped or supported. The lower end of the eccentric box is supported on a lighter-screw, t', which may be screwed up or down so as'to raise or lower or adjust the height of the eccentric box, and thus enable the shaft, Dwith its crushing surface, D', tol be moved up or down as desired.

The bottom of the eccentric box rotates on the lighter-screw and beneath the shaft, D2,

This shaft passes 5 tion of any convenient motive power. I'arso that the eccentric box and shaft have in- In other words, the center line, d, of the shaft and the center line, d', of the lighter-screw and the machine do not coincide, and I am thus able to obviate .all rubbing friction due to sliding o f the shaft on the step block or on the lighter screw where the shaft rests on it. By making the bottom of the eccentric box solid, as shown, I am able also to dispense with any separate step block, as isl generally used. The upper end of the hub, H, is covered with a hood or cap, t', which prevents dust or dirt getting into it. I inclose the gearing, I and h, with their associated parts, in a case or box, K, which forms a chamber that may be filled or partially filled with oil, O, as shown in the drawing, so as to insure a constant supply of lubrication-to the parts. As the eccentric box, I', is rotated through'the gearing, I, pinion, h, and other associated parts, a gyrating motion is imparted to the shaft, D2, and to its cone or crushing surface, as desired.

What I regard as new, and desire to secure by Letters Patent, is-

1. In gyrating crushers, the combination of a shell in which the operative parts of the crusher are arranged, an eccentric box supporting and carrying the operative parts of the crush er, gearing for imparting rotation to the eccentric box, and means for raising, lowering and adjusting the eccentric box and the parts carried by it, the Whole being arranged so that as the eccentric box rotates it maintains independent axes with reference to the shaft which it carries and to the means for raising, lowering Vand adjusting it, substaniially as described.

2. In gyrating Crushers, the combination of ALBERT JUSTIN GATES.

Witnesses:

P. W. GATES, C. L. OARMAN. 

